Then a did a bunch of editing of various pages within a stack, changed the stack name, and then synced the stack.

The stack name changed OK, but all my page changes were lost and the pages reverted to the first sync. ^&*%^%$%$%^$

I tested this a bit and what seems to happen is that if you change the name of a stack and edit the pages within, and then sync, the stack name will change fine, but all the old pages will be downloaded and any changes you've made to the pages within the stack will be lost. This is even though the pages are clearly of a more recent date/time.

I don't think this is a great way to handle this. It certainly messed me up big time, several hours of work gone.